summaryrefslogtreecommitdiffstats
path: root/arch/powerpc/include/asm/pgtable-ppc32.h
diff options
context:
space:
mode:
authorPhilippe Gerum <rpm@xenomai.org>2009-02-12 12:18:46 +0000
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>2009-02-13 16:37:44 +1100
commitfbc78b07ba53ace155f27491c81a009e541a93ad (patch)
treea30f2a0f7f732a78d200c0ef00e0c40382f6f071 /arch/powerpc/include/asm/pgtable-ppc32.h
parentb578f3fcca1e78624dfb5f358776e63711d7fda2 (diff)
downloadlinux-fbc78b07ba53ace155f27491c81a009e541a93ad.tar.bz2
powerpc/mm: Fix _PAGE_CHG_MASK to protect _PAGE_SPECIAL
Fix _PAGE_CHG_MASK so that pte_modify() does not affect the _PAGE_SPECIAL bit. Signed-off-by: Philippe Gerum <rpm@xenomai.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/include/asm/pgtable-ppc32.h')
-rw-r--r--arch/powerpc/include/asm/pgtable-ppc32.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/powerpc/include/asm/pgtable-ppc32.h b/arch/powerpc/include/asm/pgtable-ppc32.h
index f69a4d977729..820b5f0a35ce 100644
--- a/arch/powerpc/include/asm/pgtable-ppc32.h
+++ b/arch/powerpc/include/asm/pgtable-ppc32.h
@@ -429,7 +429,8 @@ extern int icache_44x_need_flush;
#define PMD_PAGE_SIZE(pmd) bad_call_to_PMD_PAGE_SIZE()
#endif
-#define _PAGE_CHG_MASK (PAGE_MASK | _PAGE_ACCESSED | _PAGE_DIRTY)
+#define _PAGE_CHG_MASK (PAGE_MASK | _PAGE_ACCESSED | _PAGE_DIRTY | \
+ _PAGE_SPECIAL)
#define PAGE_PROT_BITS (_PAGE_GUARDED | _PAGE_COHERENT | _PAGE_NO_CACHE | \